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Finding the Fourth Proportional to 16,960.21, 23,405.22 and 9,406.11

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Solution

The fourth proportional to 16,960.21, 23,405.22 and 9,406.11 is: 12,980.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,960.21 : 23,405.22 = 9,406.11 : x
  2. Step 2: Convert to fraction form
    16,960.21/23,405.22 = 9,406.11/x
  3. Step 3: Cross multiply
    16,960.21x = 23,405.22 × 9,406.11
  4. Step 4: Simplify right side
    16,960.21x = 220,152,073.89
  5. Step 5: Solve for x
    x = 220,152,073.89/16,960.21
  6. Step 6: Final answer
    x = 12,980.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.